Shear-wave elastography: Basic physics and musculoskeletal applications

Mihra Taljanovic, Lana H. Gimber, Giles W. Becker, Daniel L Latt, Andrea S. Klauser, David M. Melville, Liang Gao, Russell S Witte

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

In the past 2 decades, sonoelastography has been progressively used as a tool to help evaluate soft-tissue elasticity and add to information obtained with conventional gray-scale and Doppler ultrasonographic techniques. Recently introduced on clinical scanners, shear-wave elastography (SWE) is considered to be more objective, quantitative, and reproducible than compression sonoelastography with increasing applications to the musculoskeletal system. SWE uses an acoustic radiation force pulse sequence to generate shear waves, which propagate perpendicular to the ultrasound beam, causing transient displacements. The distribution of shear-wave velocities at each pixel is directly related to the shear modulus, an absolute measure of the tissue’s elastic properties. Shear-wave images are automatically coregistered with standard B-mode images to provide quantitative color elastograms with anatomic specificity. Shear waves propagate faster through stiffer contracted tissue, as well as along the long axis of tendon and muscle. SWE has a promising role in determining the severity of disease and treatment follow-up of various musculoskeletal tissues including tendons, muscles, nerves, and ligaments. This article describes the basic ultrasound physics of SWE and its applications in the evaluation of various traumatic and pathologic conditions of the musculoskeletal system.

Original languageEnglish (US)
Pages (from-to)855-870
Number of pages16
JournalRadiographics
Volume37
Issue number3
DOIs
StatePublished - 2017

Fingerprint

Elasticity Imaging Techniques
Physics
Musculoskeletal System
Tendons
Muscles
Elastic Tissue
Elasticity
Ligaments
Acoustics
Color
Radiation

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Shear-wave elastography : Basic physics and musculoskeletal applications. / Taljanovic, Mihra; Gimber, Lana H.; Becker, Giles W.; Latt, Daniel L; Klauser, Andrea S.; Melville, David M.; Gao, Liang; Witte, Russell S.

In: Radiographics, Vol. 37, No. 3, 2017, p. 855-870.

Research output: Contribution to journalArticle

Taljanovic, Mihra ; Gimber, Lana H. ; Becker, Giles W. ; Latt, Daniel L ; Klauser, Andrea S. ; Melville, David M. ; Gao, Liang ; Witte, Russell S. / Shear-wave elastography : Basic physics and musculoskeletal applications. In: Radiographics. 2017 ; Vol. 37, No. 3. pp. 855-870.
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